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  • How to find unique values in jagged array

    - by David Liddle
    I would like to know how I can count the number of unique values in a jagged array. My domain object contains a string property that has space delimitered values. class MyObject { string MyProperty; //e.g = "v1 v2 v3" } Given a list of MyObject's how can I determine the number of unique values? The following linq code returns an array of

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  • Avoiding Agnostic Jagged Array Flattening in Powershell

    - by matejhowell
    Hello, I'm running into an interesting problem in Powershell, and haven't been able to find a solution to it. When I google (and find things like this post), nothing quite as involved as what I'm trying to do comes up, so I thought I'd post the question here. The problem has to do with multidimensional arrays with an outer array length of one.

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  • Jagged Array in C (3D)

    - by Daniel
    How could I do the following? double layer1[][3] = { {0.1,0.1,0.8}, {0.1,0.1,0.8}, {0.1,0.1,0.8}, {0.1,0.1,0.8} }; double layer2[][5] = { {0.1,0.1,0.1,0.1,0.8} }; double *upper[] = {layer1, layer2}; I read the following after trying different ideas; to no avail. jagged array in c I understand (I hope) that double

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  • Arrays of pointers to arrays?

    - by a2h
    I'm using a library which for one certain feature involves variables like so: extern const u8 foo[]; extern const u8 bar[]; I am not allowed to rename these variables in any way. However, I like to be able to access these variables through an array (or other similar method) so that I do not need to continually hardcode new instances

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  • Adding to arrays and printing arrays in Java

    - by nfoggia
    I need help figuring out how to get the user to input a number of integers no more than 10, and then add them to an array and print them out from the array. The code I have below, when run, asks the user for the integers and then runs forever and doesn't work. What am I doing wrong? public static void main(String[] args) { Scanner

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  • Beginner question about vertex arrays in OpenGL

    - by MrDatabase
    Is there a special order in which vertices are entered into a vertex array? Currently I'm drawing single textures like this: glBindTexture(GL_TEXTURE_2D, texName); glVertexPointer(2, GL_FLOAT, 0, vertices); glTexCoordPointer(2, GL_FLOAT, 0, coordinates); glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); where vertices has four "xy pairs".

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  • General method for making sub arrays around a particular element

    - by JJ
    What is a quick, elegant way of using MatLab to form a subarray around a particular element? Element are selected randomly from the data, so you can't take a subarray in the normal way (it has to be generalized for the elements that are selected). What I mean is, forming an array for example 5x5 or 7x7 or something, where the middle

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  • Flattening a Jagged Array with LINQ

    - by PSteele
    Today I had to flatten a jagged array.  In my case, it was a string[][] and I needed to make sure every single string contained in that jagged array was set to something (non-null and non-empty).  LINQ made the flattening very easy.  In fact, I ended up making a generic version that I could use to flatten any type of

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  • Jagged Array Dimensions

    - by Soo
    I'm using jagged arrays and have a bit of a problem (or at least I think I do). The size of these arrays are determined by how many rows are returned in a database, so it is very variable. The only solution I have is to set the dimensions of the array to be very huge, but this seems ... just not the best way to do things.

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  • Jagged arrays in C#

    - by chupinette
    Hello! Im trying to store to array of ints in a jagged array: while (dr5.Read()) { customer_id[i] = int.Parse(dr5["customer_id"].ToString()); i++; } dr5 is a datareader. I am storing the customer_id in an array, i also want to store scores in another array. I want to have something like below within the while

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  • Copy one jagged array ontop of another.

    - by George Johnston
    How could I accomplish copying one jagged array to another? For instance, I have a 5x7 array of: 0, 0, 0, 0, 0, 0, 0 0, 0, 0, 0, 0, 0, 0 0, 0, 0, 0, 0, 0, 0 0, 0, 0, 0, 0, 0, 0 0, 0, 0, 0, 0, 0, 0 and a 4x3 array of: 0,1,1,0 1,1,1,1 0,1,1,0 I would like to be able to specify a specific start point such as (1,1) on

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  • Defend zero-based arrays

    - by DrJokepu
    A question asked here recently reminded me of a debate I had not long ago with a fellow programmer. Basically he argued that zero-based arrays should be replaced by one-based arrays since arrays being zero based is an implementation detail that originates from the way arrays and pointers and computer hardware

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  • resizing arrays when close to memory capacity

    - by user548928
    So I am implementing my own hashtable in java, since the built in hashtable has ridiculous memory overhead per entry. I'm making an open-addressed table with a variant of quadratic hashing, which is backed internally by two arrays, one for keys and one for values. I don't have the ability to resize though.

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  • Dynamically created jagged rectangular array

    - by gagar1n
    In my project I have a lot of code like this: int[][] a = new int[firstDimension][]; for (int i=0; i<firstDimension; i++) { a[i] = new int[secondDimension]; } Types of elements are different. Is there any way of writing a method like createArray(typeof(int), firstDimension, secondDimension); and

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  • Jagged Edge Arrays in PHP

    - by chriscct7
    I want to store some data in (I guess a semi-2, semi-3d array) in PHP (5.3) What I need to do is store data about each floor like this: Floor Num of Spots Handicap Motorcyle Other 1 100 array(15,16,17) array (47,62) array (99,100) 2 100

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  • Dynamically created jagged "rectangle" array

    - by gagar1n
    In my project I have a lot of code like this: int[][] a = new int[firstDimension][]; for (int i=0; i<firstDimension; i++) { a[i] = new int[secondDimension]; } Types of elements are different. Is there any way of writing a method like createArray(typeof(int), firstDimension,

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